<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../js/vue.js"></script>
    <style>
        li {
            list-style: none;
        }
    </style>
</head>

<body>
    <div id="root">

        <h2>上单三姐妹</h2>
        <button @click="updataMei">跟新马冬梅信息</button>

        <ul>
            <li v-for="(p,index) in persons" :key="p.id">
                {{p.name}}-{{p.age}}-{{p.sex}}
            </li>
        </ul>

    </div>

    <script>

        // 用computed实现
        new Vue({
            el: '#root',
            data: {
                persons: [
                    { id: '001', name: '马冬梅', age: 18, sex: '女' },
                    { id: '002', name: '周冬雨', age: 99, sex: '女' },
                    { id: '003', name: '周杰伦', age: 20, sex: '男' },
                    { id: '004', name: '温兆伦', age: 27, sex: '男' },
                ]
            },
            methods: {
                updataMei(){
                    this.persons[0]=  { id: '001', name: '马小梅', age: 20, sex: '女' }
                     
                }
            },

        })
    </script>
</body>

</html>